When the body is infected with pathogenic bacteria, the body’s own immunity is reduced, or long-term use or abuse of antibiotics and other drugs and so on are the main reasons for the occurrence of fungal pneumonia. 1. When the organism is infected with pathogenic bacteria in the living environment, such as Histoplasma capsulatum, Coccidioides immitis, dermatophytes and so on, it can directly lead to the organism being infected with fungal pneumonia. At this time, you need to go to the hospital in time, under the guidance of the doctor to use some antifungal drugs for treatment. 2. The body’s own immunity decreases, the defense function decreases, such as suffering from colds, AIDS and other diseases, or tumor patients after chemotherapy, the germs are more likely to invade the lungs, leading to the occurrence of pneumonia. 3. Long-term use or abuse of antibiotics, resulting in the body’s bacterial flora imbalance, or rheumatic immune disease patients due to long-term use of glucocorticoids leading to the body’s immune function can also trigger fungal pneumonia. When the body suffers from fungal pneumonia, due to the different causes and individual differences, it is recommended to go to the hospital in time for diagnosis before receiving treatment.